Tin-Plated Air Coil

What Causes Air-Coil Corrosion?
Modern home building materials such as counter tops,
floor coverings, paints, and other materials can “out
gas” chemicals into the building space air. Some of
these chemicals are suspected of contributing to air-coil
corrosion, i.e., formicary corrosion.
The Solution:
All Tranquility Series Packaged geothermal heating and
cooling systems feature tin-plated air coils. This process
will provide years of protection against coil corrosion
from airborne chemicals resulting from modern building
material outgassing and most air born environmental
Our tube and tin air coils come standard with
tin-plated air coils.
ClimateMaster Ground Source Heat Pumps are backed by a
Standard 10-year limited warranty on all parts with 5-year
labor allowance; Optional additional extended 5-year limited
labor allowance available.
Tin plating provides superior corrosion resistance.
Tin-Plated Air Coil
What is Tin Plating or Electroplating?
The tin-plating process is used extensively to protect
both ferrous and nonferrous surfaces. Tin is a useful
metal for the food processing industry since it is nontoxic, ductile and corrosion resistant. The excellent
ductility of tin allows a tin coated base metal sheet to
be formed into a variety of shapes without damage to
the surface tin layer. It provides sacrificial protection
for copper, nickel and other non-ferrous metals.
Electroplating is a plating process that uses electrical
current to reduce cations of a desired material from
a solution and coat a conductive object with a thin
layer of the material, such as a metal. Electroplating
is primarily used for depositing a layer of material to
bestow a desired property (e.g., abrasion and wear
resistance, corrosion protection, lubricity, aesthetic
qualities, etc.) to a surface that otherwise lacks that
The process used in electroplating is called
electrodeposition. It is analogous to a galvanic
cell acting in reverse. The part to be plated is the
cathode of the circuit. In one technique, the anode
is made of the metal to be plated on the part. Both
components are immersed in a solution called an
electrolyte containing one or more dissolved metal
salts as well as other ions that permit the flow of
electricity. A power supply supplies a direct current to
the anode, oxidizing the metal atoms that comprise it
and allowing them to dissolve in the solution. At the
cathode, the dissolved metal ions in the electrolyte
solution are reduced at the interface between the
solution and the cathode, such that they “plate out”
onto the cathode. The rate at which the anode is
dissolved is equal to the rate at which the cathode
is plated, vis-a-vis the current flowing through the
circuit. In this manner, the ions in the electrolyte bath
are continuously replenished by the anode.
The result is a consistent and uniform tin plating
across the copper hairpin.
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ClimateMaster works continually to improve its products. As a result, the design and specifications of each product at the time for order may be changed without notice and may not
be as described herein. For specific information on the current design and specifications go to cmdealernet.com. Statements and other information contained herein are not express
warranties and do not form the basis of any bargain between the parties, but are merely ClimateMaster’s opinion or commendation of its products.
© 2010 ClimateMaster, Inc.
Rev.: 9/28/16